Base | Representation |
---|---|
bin | 10101101000101100… |
… | …011010100100101000 |
3 | 2012222000210211102100 |
4 | 111220230122210220 |
5 | 340034203410440 |
6 | 14401115333400 |
7 | 1451456610054 |
oct | 255054324450 |
9 | 65860724370 |
10 | 23231310120 |
11 | 9941518157 |
12 | 4604151260 |
13 | 2262c89865 |
14 | 11a5500c64 |
15 | 90e7a1230 |
hex | 568b1a928 |
23231310120 has 96 divisors (see below), whose sum is σ = 77343313320. Its totient is φ = 6043914240.
The previous prime is 23231310119. The next prime is 23231310163. The reversal of 23231310120 is 2101313232.
23231310120 is a `hidden beast` number, since 2 + 3 + 231 + 310 + 120 = 666.
It can be written as a sum of positive squares in 4 ways, for example, as 17887992516 + 5343317604 = 133746^2 + 73098^2 .
It is a super-2 number, since 2×232313101202 (a number of 22 digits) contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (18).
It is a junction number, because it is equal to n+sod(n) for n = 23231310093 and 23231310102.
It is an unprimeable number.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 772209 + ... + 801728.
Almost surely, 223231310120 is an apocalyptic number.
23231310120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.
It is an amenable number.
23231310120 is an abundant number, since it is smaller than the sum of its proper divisors (54112003200).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
23231310120 is a wasteful number, since it uses less digits than its factorization.
23231310120 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1573995 (or 1573988 counting only the distinct ones).
The product of its (nonzero) digits is 216, while the sum is 18.
Adding to 23231310120 its reverse (2101313232), we get a palindrome (25332623352).
The spelling of 23231310120 in words is "twenty-three billion, two hundred thirty-one million, three hundred ten thousand, one hundred twenty".
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